JRC-IRMM has released two new certified reference materials (CRMs), ERM-CZ100 and ERM-CZ120 which are targeted to control the measurements in the frame of quality control of ambient air in Europe. The monitoring of air quality is required by The European Air Quality Directives (2008/50/EC and 2004/107/EC). The two new CRMs have been developed to match requirements of these Directives. It relates to the type of matrix including the particle size and the type and content of certified analytes.

Therefore, ERM-CZ100 and ERM-CZ120 have been produced from fine dust that was processed in a way to resemble PM10 as close as possible. ERM-CZ100 is certified for seven polycyclic aromatic hydrocarbons (PAHs) (benzo[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[j]fluoranthene, benzo[a]pyrene, indeno[123-c,d]pyrene, dibenzo[a,h]anthracene) and the sum of benzo[b]fluoranthene, benzo[k]fluoranthene and benzo[j]fluoranthene. ERM-CZ120 is certified for four elements (As, Cd, Ni and Pb).

ERM-CZ100 and ERM-CZ120 are primarily intended to assess performance of analytical methods for analysis of selected elements/PAHs in PM10 and for validation purposes (e.g. trueness estimation).

Both materials have been processed and certified in accordance to ISO Guides 34 and 35. Details about material sampling, processing and certification are described in detail in the certification reports, available together with the certificates in our online catalogue.

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